Home / 140,651.27-194,104.10-80,231.75

Finding the Fourth Proportional to 140,651.27, 194,104.10 and 80,231.75

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Solution

The fourth proportional to 140,651.27, 194,104.10 and 80,231.75 is: 110,722.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,651.27 : 194,104.10 = 80,231.75 : x
  2. Step 2: Convert to fraction form
    140,651.27/194,104.10 = 80,231.75/x
  3. Step 3: Cross multiply
    140,651.27x = 194,104.10 × 80,231.75
  4. Step 4: Simplify right side
    140,651.27x = 15,573,311,625.18
  5. Step 5: Solve for x
    x = 15,573,311,625.18/140,651.27
  6. Step 6: Final answer
    x = 110,722.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.